Welcome to the forum. Yes there are quite a few folks here in a poly/mono configuration, and it definitely can be made to work and work well. Most find that it is a bit more of a challenge, but workable.
I hope that you and he find what you need here.
Please check out The Birdcage - an open, friendly Polyamory forum for all parts of New York State
"Listen, or your tongue will make you deaf." - Native American Proverb